Is your BMW or MINI throwing a pesky check engine light, suffering from a rough idle, or guzzling fuel like it's track day? Over time, factory oxygen sensors degrade from extreme exhaust heat and carbon buildup, sending lazy signals to your DME.
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BMW E88 135i N55 3.0L Engine Electrical Parts
- Alternator
- Battery
- Cruise Control
- ECU
- Fuse Panel
- Ground Strap
- Harness
- Ignition
- Pump
- Relay
- Relays
- Sensors
- Starter
- Throttle Body
- Wire Covering
With award-winning Swedish technology, the dual input D250SE allows you to enjoy your vehicle more
This product was last offered at the strikethrough price on
05-02-2026
Unlock the true fueling potential of your N55 engine with the Dorch Engineering DS25 High-Pressure Fuel Pump (HPFP) Upgrade.
For Vehicles Produced After 12/2013
- Brand:
- Dorch Engineering
- ES#:
- 5482595
- Mfg#:
- DE-55-25A
Unlock the true power potential of your early-production N55 engine.
For Vehicles Produced Before 12/2013
- Brand:
- Dorch Engineering
- ES#:
- 5482537
- Mfg#:
- DE-55-15B
Unlock the true fueling potential of your N55 engine with the Dorch Engineering DS25 High-Pressure Fuel Pump (HPFP) Upgrade.
- Brand:
- Dorch Engineering
- ES#:
- 5482604
- Mfg#:
- DE-55-25B
PVC Electrical tape used for wiring harness repair
The Mishimoto BMW 550i Ignition Coil is a high-quality replacement designed to restore the factory performance and fuel efficiency of your 4.4L V8 engine.
Designed to restore factory-level performance and fuel efficiency to a wide range of BMW models.
Designed for perfect fit and function
Regain power loss & fuel economy from worn or failed ignition coils!
Regain power loss & fuel economy from worn or failed ignition coils!
Is your engine cranking but not starting? It's probably time to replace your crankshaft position sensor.
Switch, remote pull, and battery are not included with this or any of the kits.
This harness is specifically engineered for BMW N54 owners who are upgrading to a front-facing intake manifold.
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Fuel control and emissions sensor
This product was last offered at the strikethrough price on
05-07-2026
Includes a refundable $429 core charge
For vehicles with production date up to 03/2011